sonic-buildimage/device/broadcom
Richard.Yu a096363b48
[broadcom]: Set default SYNCD_SHM_SIZE for Broadcom XGS devices (#13297)
After upgrade to brcmsai 8.1, the sdk running environment (container) recommended with mininum memory size as below

TH4/TD4(ltsw) uses 512MB
TH3 used 300MB
Helix4/TD2/TD3/TH/TH 256 MB
Base on this requirement, adjust the default syncd share memory size and set the memory size for special ACISs in platform_env.conf file for different types of Broadcom ASICs.

How I did it
Add the platform_env.conf file if none of it for broadcom platform (base on platform_asic file)
Add the 'SYNCD_SHM_SIZE' and set the value

for ltsw(TD4/TH4) devices set to 512M at least (update the platform_env.conf)
for Td2/TH2/TH devices set to 256M
for TH3 set to 300M

verify

How to verify it
verify the image with code fix
Check with UT
Check on lab devices

On a problematic device which cannot start successfully
Run with the command
$ cat /proc/linux-kernel-bde
Broadcom Device Enumerator (linux-kernel-bde)
Module parameters:
        maxpayload=128
        usemsi=0
        dmasize=32M
        himem=(null)
        himemaddr=(null)
DMA Memory (kernel): 33554432 bytes, 0 used, 33554432 free, local mmap
No devices found
$ docker rm -f syncd
syncd
$ sudo /usr/bin/syncd.sh start
Cannot get Broadcom Chip Id. Skip set SYNCD_SHM_SIZE.
Creating new syncd container with HWSKU Force10-S6000
a4862129a7fea04f00ed71a88715eac65a41cdae51c3158f9cdd7de3ccc3dd31
$ docker inspect syncd | grep -i shm
            "ShmSize": 67108864,
                "Tag": "fix_8.1_shm_issue.67873427-9f7ca60a0e",
On Normal device
$ docker inspect syncd | grep -i shm
            "ShmSize": 268435456,
                "Tag": "fix_8.1_shm_issue.67873427-9f7ca60a0e"
change the config syncd_shm.ini to b85=128m

$ docker rm -f syncd
syncd
$ sudo /usr/bin/syncd.sh start
Creating new syncd container with HWSKU Force10-S6000
3209ffc1e5a7224b99640eb9a286c4c7aa66a2e6a322be32fb7fe2113bb9524c
$  docker inspect syncd | grep -i shm
            "ShmSize": 134217728,
                "Tag": "fix_8.1_shm_issue.67873427-9f7ca60a0e",
change the config under
/usr/share/sonic/device/x86_64-dell_s6000_s1220-r0/Force10-S6000/platform_env.conf
and run command

$ cat /usr/share/sonic/device/x86_64-dell_s6000_s1220-r0/platform_env.conf
SYNCD_SHM_SIZE=300m

$ sudo /usr/bin/syncd.sh start
Creating new syncd container with HWSKU Force10-S6000
897f6fcde1f669ad2caab7da4326079abd7e811bf73f018c6dacc24cf24bfda5
$  docker inspect syncd | grep -i shm
            "ShmSize": 314572800,
                "Tag": "fix_8.1_shm_issue.67873427-9f7ca60a0e",

Signed-off-by: richardyu-ms <richard.yu@microsoft.com>
2023-01-30 20:23:03 -08:00
..
x86_64-bcm_xlr-r0 Disable ALPM distributed hitbit thread that is used for debug purpose only but interfered with Other functional operations (#9199) 2021-11-09 07:21:57 -08:00
x86_64-broadcom_common [broadcom]: Set default SYNCD_SHM_SIZE for Broadcom XGS devices (#13297) 2023-01-30 20:23:03 -08:00